Keystones — Cornerstone
Five GCSE retrieval questions · 20 May 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 712 + 847
Answer: 712 + 847 = 1559 -
2. Algebra
Solve: x + 14 = 20
Answer: x = 6 -
3. Geometry
Opposite = 8cm, hypotenuse = 11.3cm. Find the angle
Answer: 45° (approximately) -
4. Ratio
Calculate 50% of 93
Answer: 46.5 -
5. Statistics
Find the mean of: 5, 19, 19, 7, 3
Answer: 10.6